Local area network control system based on bluetooth and user datagram protocol and method thereof

Abstract

A local area network control system based on Bluetooth and user datagram protocol (UDP), which includes a plurality of first Bluetooth devices, a first gateway, a plurality of second Bluetooth devices, a second gateway, and a control device. The first gateway manages the first Bluetooth devices. The second gateway manages the second Bluetooth devices. The first gateway broadcasts an information exchange request message based on UDP. The second gateway receives and analyzes the information exchange request message to obtain the gateway information of the first gateway, and return an information message based on UDP to the first gateway. The first gateway receives and analyzes the information message to obtain the gateway information of the second gateway. The control device controls one or more of the first Bluetooth devices and the second Bluetooth devices via either the first gateway or the second gateway.

What is claimed is: 
     
         1 . A local area network control system based on Bluetooth and user datagram protocol, comprising:
 a plurality of first Bluetooth devices;   a first gateway configured to manage the first Bluetooth devices;   a plurality of second Bluetooth devices;   a second gateway configured to manage the second Bluetooth devices; and   a control device;   wherein the first gateway is configured to broadcast an information exchange request message based on a user datagram protocol, and the second gateway is configured to receive and analyze the information exchange request message to obtain a gateway information of the first gateway, and return an information message based on the user datagram protocol to the first gateway, wherein the first gateway is configured to receive and analyze the information message to obtain a gateway information of the second gateway, and the control device is configured to control one or more of the first Bluetooth devices and the second Bluetooth devices via either the first gateway or the second gateway.   
     
     
         2 . The local area network control system based on Bluetooth and user datagram protocol as claimed in  claim 1 , wherein the gateway information of the first gateway comprises an Internet address of the first gateway and a routing information of the first Bluetooth devices. 
     
     
         3 . The local area network control system based on Bluetooth and user datagram protocol as claimed in  claim 2 , further comprising a second local database, wherein the second gateway is configured to save the routing information of the first Bluetooth devices in the second local database and return the information message to the first gateway in a unicast manner based on the user datagram protocol according to the Internet address of the first gateway, whereby the second gateway has the routing information of the first Bluetooth devices and a routing information of the second Bluetooth devices. 
     
     
         4 . The local area network control system based on Bluetooth and user datagram protocol as claimed in  claim 1 , wherein the gateway information of the second gateway comprises an Internet address of the second gateway and a routing information of the second Bluetooth devices. 
     
     
         5 . The local area network control system based on Bluetooth and user datagram protocol as claimed in  claim 4 , further comprising a first local database, wherein the first gateway is configured to save the routing information of the second Bluetooth devices in the first local database and return a confirmation message to the second gateway in a unicast manner based on the user datagram protocol according to the Internet address of the second gateway, whereby the first gateway has the routing information of the first Bluetooth devices and the routing information of the second Bluetooth devices. 
     
     
         6 . A local area network control method based on Bluetooth and user datagram protocol, comprising:
 broadcasting an information exchange request message based on a user datagram protocol by a first gateway configured to manage a plurality of first Bluetooth devices;   receiving and analyzing the information exchange request message by a second gateway configured to manage a plurality of second Bluetooth devices to obtain a gateway information of the first gateway, and returning an information message based on the user datagram protocol to the first gateway;   receiving and analyzing the information message by the first gateway to obtain a gateway information of the second gateway; and   controlling one or more of the first Bluetooth devices and the second Bluetooth devices by a control device via either the first gateway or the second gateway.   
     
     
         7 . The local area network control method based on Bluetooth and user datagram protocol as claimed in  claim 6 , wherein the gateway information of the first gateway comprises an Internet address of the first gateway and a routing information of the first Bluetooth devices. 
     
     
         8 . The local area network control method based on Bluetooth and user datagram protocol as claimed in  claim 7 , wherein a step of receiving and analyzing the information exchange request message by the second gateway configured to manage the second Bluetooth devices to obtain the gateway information of the first gateway, and returning the information message based on the user datagram protocol to the first gateway further comprises:
 saving the routing information of the first Bluetooth devices in a second local database via the second gateway; and   returning the information message to the first gateway in a unicast manner based on the user datagram protocol according to the Internet address of the first gateway by the second gateway, whereby the second gateway has the routing information of the first Bluetooth devices and a routing information of the second Bluetooth devices.   
     
     
         9 . The local area network control method based on Bluetooth and user datagram protocol as claimed in  claim 6 , wherein the gateway information of the second gateway comprises an Internet address of the second gateway and a routing information of the second Bluetooth devices. 
     
     
         10 . The local area network control method based on Bluetooth and user datagram protocol as claimed in  claim 9 , further comprising:
 saving the routing information of the second Bluetooth devices in a first local database by the first gateway; and   returning a confirmation message to the second gateway in a unicast manner based on the user datagram protocol according to the Internet address of the second gateway by the first gateway, whereby the first gateway has the routing information of the first Bluetooth devices and the routing information of the second Bluetooth devices.